Combination packer and setting tool



Sept. 30, 1 w. CHURCH COMBINATION PACKER AND SETTING TOOL Filed Sept. 16, 1926 11w 7557012. a 0 MW! Patented Sept. 30, 1930 UNITED" ,STATES PATENT OFFICE WALTER I CHURCH, OF HOUSTON, TEXAS, ASSIGNOR OF ONE-HALF TO JEDDY D- NIXON, OF HOUSTON, TEXAS COMBINATION PACKER AND. SETTING TOOL Application filed September 16, 1926. Serial No. 135,800.

This invention relates to new and useful improvements in a combination packer and setting tool.

One object of the invention is to provide an expansible packer a apted to be inserted between a liner, or inside pipe and the surrounding casing, or walls of a well bore and expanded so as to form a water tight joint be-- tween said pipe and the said casing or walls of the bore, and includes also a setting-tool through which the packer may be set and which'is releasable so that it may be withdrawn after the setting of the packer has been accomplished.

Figure 1 shows a Another object of the invention is to provide'anapparatus of the character described which is of very simple construction, and may be cheaply produced and'is very eflieient in use with the above and other objects in view this invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specification and'illustrated in the accompanying drawings, wherem vertical sectional view of the tool. Y t

Figure 2 shows a cross sectional view taken on the line 2-2 of Fi ure 1.

Figure 3 shows a si e elevation of the mandrel and the bushing partly in section.

Figure 4 shows a cross sectional v1ew taken on the line 4-4 of Figure 3, and

Fi ure 5 shows a fragmentary vertlcal sectiona view of the bushing.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures formed with a flared internally threaded box,

adapted to receive the flared portion a ofthe mandrel 3. This threaded connection is preferably formed with right hand threads.

the upper end of the packer barrel 9, andattached to the lower'end'of this barrel there is the liner 10, or other pipe to be set in the bore.

Surrounding the barrel 9 there is a sleeve like packer 12 formed of fabric or other suitableexpansible material. The lower end of the packer abuts the packer ring 13, carried by the barrel and secured to the barrel in any suitable manner as by wrap ing with wire 14. The upper end of the pac er 12 is fastened around the packer sleeve 15 which works over the upper end of the barrel 9. The barrel 9 has external annular ratchet teeth 16 and 7 the packer sleeve 15 has an internal annular downwardly contracted seat 17, in which is .engage said teeth 16.

ecured to the upper end of the packer sleeve 15 and upstanding therefrom there is a a tubular setting nipple 19 whose upper end is .formed with a flared seat 20;"

In use the mandrel 3 is attached to the stem 1 and the bushing 5 is threaded into the upper end of the barrel 9 and onto the flared portion 4 of the mandrel and the barrel is connected to the upper end ofi the liner to be acked. A rigid connection is thus formed etween said stem and liner. The assembled apparatus is then let down into the well bore until theliner, or inside pipe to be packed, rests on the bottom of the bore. The stem is then turned to the'right until the enlarged portion 4, of-the mandrel is screwed out of said bushing and this will permit the stem 1 and'its collar 2 to move downwardly relative to the barrel 9 and said collar will seat on the seat 20 of the setting nipple 19 and force said nipple and packer sleeve 15 downwardly and expand the packer 12 against the surrounding casing, or the walls of the wellbore. As the sleeve-15 moves downwardly the ring 18 will expand to pass over the teeth 16 but when the packer is set will engage said teeth to hold said packer expanded.

As the mandrel 3 moves downwardl the keys 7 will enter the keyways 8, of the ushing, the upper ends of said keyways being flared to facilitate the entrance of the-keys therein and the mandrel will thus be clutched with the bushing 5. The stem 1 may now be turned to the right and the bushing thus unscrewed out of the barrel 9 and the stem 1, and setting tool attached thereto, withdrawn from the well bore.

What I claim is 1. In combination a barrel, a sleeve thereon, a packer around the barrel, one end of which is attached to the barrel and the other end of which is attached to said sleeve, a mandrel, 'a nonexpansible bushing threaded into the barrel and into which the mandrel is threaded, a'stem attached to the ,mandrel through which the mandrel may be rotated to unscrew it from said bushing, interlocking means through which the mandrel may be clutched for rotation with the bushing when unscrewed therefrom.

2. In combination a barrel, a sleeve thereon, a packer around the barrel, one end of which is attached to the barrel and the other end of which is attached to said sleeve, a mandrel, a nonexpansible bushing threaded into the barrel and into which the mandrel is threaded, a stem attached to the mandrel through which the mandrel may be rotated to unscrew it from said bushing, interlocking means through which the mandrel may be clutched for rotation with the bushing when unscrewed therefrom, a setting nipple attached to and upstanding from the sleeve and an abutment carried by the stem and adapted to seat against said nipple when the mandrel is unscrewed from said bushing, to expand said packer.

3. In combination a barrel, an expansible packing element thereon, means for expanding the packing element, said expanding means including a nonexpansible bushing threaded into the upper end of the barrel, a

' mandrel threaded into the bushing, a stem connected to the mandrel through which the mandrel may be unscrewed from the bushing to permit the stem and mandrel to descend, means carried by the stem and effective to operate against said packing element to expand the same when the mandrel is unscrewed and operative connections between the bushing and stem when the stem is in its lowered position through which the bushing may be unscrewed from the barrel. 1

4. In combination a barrel, an expansible packing element thereon, means for expanding the packing element, said expanding means including a bushing threaded into the upper end of the barrel, a mandrel threaded into the bushing, a stem connected to the man,- drel through which the mandrel may be unscrewed from the bushing to permit the stem and mandrel to descend, means carried by the stem and effective to operate against said packing element to expand the same when the mandrel is unscrewed and interlocking means carried by the mandrel and bushing which interengage when said mandrel is unscrewed whereby the bushing may be rotated with said stem to unscrew said bushing from said barrel.

5. In combination a barrel, an expansible packing element thereon, means for expanding the packing element, said expanding means including a nonexpansible bushing threaded into the upper end of the barrel, a mandrel threaded into the bushing, a stem connected to the mandrel through which the mandrel may be unscrewed from the bushing to permit the stem and mandrel to descend, means carried by the stem and eiiective to operate against said packing element to expand the same when the mandrel is unscrewed and interlocking means adapted to hold said packing element in expanded position and means on the stem effective to engage the bushing when the stem descends and through which the bushing may be rotated with the stem and unscrewed from the barrel.

6. In combination a tubular packer support, an expansible packer thereon, a setting nipple, means for expanding the packer, said means including a nonexpansible bushing threaded into said support, a mandrel threaded into the bushing, a stem connected to said mandrel through which said mandrel may be unscrewed from the bushing, means carried by the stem and bushing, adapted to be interlocked, through which the bushing may be rotated from the stem to unscrew said bushing from said support and means carried by the stem adapted to operate through said nipple to expand the packer when said mandrel is unscrewed.

7. In combination a tubular packer support, an expansible packer thereon, a setting nipple, means for expanding the packer, said means includin a bushing threaded into said support, a mandrel threaded into the bushing, a stem connected to said mandrel, and means carried by the stem adapted to operate through said nipple to expand the packer when said mandrel is unscrewed and interlocking means carried by the mandrel and bushing through which said bushing may be rotated, from the stem to unscrew said bushing from said barrel. 7

8. In combination a tubular packer support, an expansible packer thereon, a setting nipple, means for expanding the packer, said means including a bushing threaded into said support, a mandrel Whose lower end is threaded into the bushing, a stem connected to said mandrel through which the mandrel may be unscrewed from the bushing to permit the mandrel to be lowered through said bushing,

interengaging means carried by the mandrel and bushing respectively adapted to engage when the mandrel is in said lowered position through which the bushing may be unscrewed from said support by the rotation of the mandrel, and abutment above the bushing adapted to contact with said nipple, when the mandrel is lowered through the nipple, and operating to expand the packer, and means adapted to engage the packer support to hold the packer in expanded position. In testimony whereof I have name to this specification.

WALTER L. CHURCH.

signed my 

